Alphons custodis



(R0 Model.)

(A. cns'roms. SGALE FOR WEIGHING-GASBQUS SUBSTANCES. No. 569,177.Patented 0c't 13,.18-96.

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UNITED STATES PATENT OFFICE.

ALPHONS CUSTODIS, OF DUSSELDORF, GERMANY.

SCALE FOR WEIGHING GASEOUS SUBSTANCES.

SPECIFICATION forming part of Letters Patent No. 569,177, dated October13, 1896.

Application filed April 24:, 1895.

represents a vertical central section of my improved scale. Fig. 2 is atransverse section on line A B, Fig. l.

The letter A represents the casing of the scale, containing two chambersk These chambers are provided with the separate inlet-pipes s s andcommunicate by openings 0 0' with a third or joint chamber k having asingle outlet-pipe a. Thus by applying a suitable suction apparatus tothis pipe the gases are exhausted from both chambers simultaneously.Within the chambers 7c 70 are contained the floats b I), connected byropes or chains m m to a scale-beam c, fulcrumed within chamber 10 at c.This scale-beam carries or operates the pointer .2, moving over a scale2'.

In use air is admitted into chamber 70 through pipe 8 by means of asuitable suction or pressure pump, while the gas to be weighed isadmitted by pipe 8 into the chamber it. According to the differentweights of the two gases, the floats b bwill rise or fall to differentheights within their chambers. Thus the floats will vibrate thescale-beam c, and the pointer 2 will indicate the difference of weightupon the scale 2'.

The scale 2 is rendered laterallyadjustable by means of aworm .2 To setthe scale, the same gas or air is drawn simultaneously through bothchambers, when the finger 2;

Serial No. 546,967. (No model.)

should point at zero. Should this not be the case (owing to inaccuraciesof the weighing mechanism) the scale is shifted until the finger pointsat the zero-mark. The gases after acting upon the floats will pass intothe joint-chamber k and are thence drawn out through the common pipe a.Within the chamber 10 a mixture of gas and air will thus be formed,which, owingto its specific gravity, will not have a tendency to reentereither of the chambers k it. Thus it is not necessary to pack the chainsm m where they pass out of the chambers k k.

In order to ascertain the properties of gaseous substances, they may besimultaneously admitted into both chambers. That gas, however, which isadmitted into one chamber is previously passed through a liquid, whichefiects a certain change in the mixture and weight of the gas. In thisway the pointer will indicate the property of the gas passed through theliquid. So, for example, carbonic-acid gas may be passed through causticsoda.

My improved scale is well applicable for mines to indicate the nature ofthe fire-damp, and may in this case be connected to a distant electricindicator.

What I claim is A gas-scale provided with a pair of chambers lo, 70',having inlet-orifices, a joint-chamber 71?, communicating with chambersk, k, a common exhaust pipe a, floats suspended within chambers lo k, ascale-beam operated thereby, a pointer secured to the scale-beam, amovable scale 2, and a worm 2*, for adj usting the scale in a lateraldirection, substantially as specified.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

ALPHONS OUSTODIS.

Witnesses WILHELM ESSENWEIN, Ennsr ANDRE.

